单词：manually operated directional valve
单词：manually operated directional valve 相关文章
Without the Sun we wouldnt be here. It is the source of our heat, light and energy. It is enormous, bigger than we could imagine; yet its very small compared to other suns in the universe. Its unbelievable to think how much the sun burns. Its just a
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This is the VOA Special English Health Report. Doctors currently identify autism disorders by observing behavior. Autism affects social and communication skills. It usually first appears in young children. Now, researchers in the United States think
2010年VOA慢速英语(十二)月
Amanandhissonwereridinginthecar. Themansaidtohisson,Couldyoucheckandseeifthedirectionlightsareworkingonyoursideofthecar? Hissonlookedoutthewindowandsaid,Yes,no,yes,no,yes,no,yes,no... Notes: 1.Amanandhissonwereridinginthecar. 有一个男人和他儿子
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妈妈出差期间爸爸和丹尼尔的衣服只能自己洗，但偏偏在这个时候洗衣机坏了。幸好楼下有投币洗衣机，但好事多磨，他们又碰到什么问题了呢？ Listen Read Learn Daniel: Dad, something wrong with our w
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Cleaning the ears is often considered to be a sign of good personal cleanliness. 清理耳朵通常会被认为是良好个人卫生的一大标志。 But manually removing earwax could actually damage a person's hearing, according to new guidelines
实用英语
set off 出发，使工作，使爆炸，让闹钟响起 We're going to have to set it off manually. 我们得手动启动它了。 They set off to get the baby back. 他们接孩子去了。 We set off to visit the country. 我们出发去乡下探亲
老外最常用的英文短语